Mechanics of Old Faithful Geyser, Calistoga, CA
Geophysical Research Letters
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Abstract
In order to probe the subsurface dynamics associated with geyser eruptions, we measured ground deformation at Old Faithful Geyser of Calistoga, CA. We present a physical model in which recharge during the period preceding an eruption is driven by pressure differences relative to the aquifer supplying the geyser. The model predicts that pressure and ground deformation are characterized by an exponential function of time, consistent with our observations. The geyser's conduit is connected to a reservoir at a depth of at least 42 m, and pressure changes in the reservoir can produce the observed ground deformations through either a poroelastic or elastic mechanical model.
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Additional publication details
Publication type | Article |
---|---|
Publication Subtype | Journal Article |
Title | Mechanics of Old Faithful Geyser, Calistoga, CA |
Series title | Geophysical Research Letters |
DOI | 10.1029/2012GL054012 |
Volume | 39 |
Issue | 24 |
Year Published | 2012 |
Language | English |
Publisher | American Geophysical Union |
Contributing office(s) | Branch of Regional Research-Western Region, Volcano Hazards Program |
Description | 5 p. |
Larger Work Type | Article |
Larger Work Subtype | Journal Article |
Larger Work Title | Geophysical Research Letters |
Country | United States |
State | California |
City | Calistoga |